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[[IMAGE: sketch of cliff with levels labeled]
Sand Sand and pebbles irradiated sand sand pebbles pebbles
Paso del Toro Rio Frio a Barranco or Precipitious Cliff
Indian Tents (temporary) made of branches of trees
File:Pencil sketch of three kinds of shelters
piece of canvas thrown over poles branch of a tree bent down Tent at Camp Grieve with British flag